102442 has 16 divisors (see below), whose sum is σ = 171072. Its totient is φ = 45760.

The previous prime is 102437. The next prime is 102451. The reversal of 102442 is 244201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717 + ... + 847.

It is an arithmetic number, because the mean of its divisors is an integer number (10692).

2¹⁰²⁴⁴² is an apocalyptic number.

102442 is a deficient number, since it is larger than the sum of its proper divisors (68630).

102442 is a wasteful number, since it uses less digits than its factorization.

102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 102442 is about 320.0656182723. The cubic root of 102442 is about 46.7906792259.

Subtracting from 102442 its product of nonzero digits (64), we obtain a triangular number (102378 = T₄₅₂).

Adding to 102442 its reverse (244201), we get a palindrome (346643).

The spelling of 102442 in words is "one hundred two thousand, four hundred forty-two", and thus it is an iban number.